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Trane XL14i Compressor RPM low

Have a Trane XL14i and the compressor fan RPM seems to be lower than normal. It is the single speed fan motor rated at 825 rpm. The unit is not cooling the house like it used to, runs most of the afternoon in the heat of south La, the tech is scheduled to look at it today, any reason for the lower rpm?

Tech came out, motor amp draw was 1 amp, (rated at 1.4 amp max)
The capacitor looked rusty and corroded so replaced that, but no change in rpm.
Will be getting a motor and was thinking about getting the 1175 rpm motor, any issues with that?

The tech is wrong the replacement motor is exactly the same also the xl units have a 10 yr part warranty , what is the model and serial number of the unit only need the first 4 digits of the serial number have replaced several motors on the 14i

Tech came out, motor amp draw was 1 amp, (rated at 1.4 amp max)
The capacitor looked rusty and corroded so replaced that, but no change in rpm.
Will be getting a motor and was thinking about getting the 1175 rpm motor, any issues with that?

To update this, the Tech submitted a warranty claim to Trane for a motor and they tell him that the claim is denied due to Hurrican Isaac. Said motor problem was caused by hurricane and power outages and they are not responsible. It was at lower rpm before and hurricane had nothing to do with it.

To update this, the Tech submitted a warranty claim to Trane for a motor and they tell him that the claim is denied due to Hurrican Isaac. Said motor problem was caused by hurricane and power outages and they are not responsible. It was at lower rpm before and hurricane had nothing to do with it.

What should I do now?

Roughly how much should the motor be?

Wondering if I should just pay for it myself.

Was your unit submerged in flood water ??? I don't have such impression from you.